Sanpo-yoshi Communication

Printing Column] Fearful changing color swatches

It was a long time ago...from sales.The box is green and moldy.I was informed that the paper was green, and when I took out the color swatch and print sample, it was still green, not looking like mold.

I said, "The sample is green, too, and I can't make a decision."

Sales: "The sample was brown, not green."

I said, "What? The sample in front of you is green; please check it when you return in the evening."

I was then informed that "it's still brown," and when I went to the sales person, who said it couldn't be, the sample had turned brown. I feel like I was pinched by a fox.

This color sample was printed by an inkjet printer on white kraft-type paper that is actually used for printing.

The investigation revealed that the cause was due to "optical brightening agent" contained in paper, which is a chemical that makes paper look whiter by reducing the yellowish tint of the color, which turns blue to purple when exposed to ultraviolet rays. It is not used for domestic coated paperboard, etc., but is used for almost all pale or pure white paper, such as foreign paper and copy paper.

This is the true story of the mysterious "changing color swatches of fear.

Incidentally, you can rest assured that our inkjet output paper is produced on paper with low levels of optical brighteners.

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